Structure 5203A006 18159 · Umatilla County, OR

I-84 (hwy 006) over Westland IRR Canal

Carries I-84 (hwy 006) over Westland IRR Canal, 042 Mi E Morrow Co LN.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT30 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

30 ft end to end. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a rigid-frame bridge.

Built196759 years old
Length29.9 ft9.1 m
Daily traffic16,309counted 2022
Last inspectedMarch 2024every 24 months

Location

StateOregon
CountyUmatilla
Location042 Mi E Morrow Co LN
CarriesI-84 (hwy 006)
CrossesWestland IRR Canal
Coordinates45.78787, -119.34943

Physical Characteristics

MaterialConcrete Continuous
DesignFrame
Total Length29.9 ft (9.1 m)
Max Span29.9 ft (9.1 m)
Deck Width180.1 ft (54.9 m)
Deck Area499.6 sq m
Main Spans1
Year Built1967

Traffic

Avg Daily Traffic16,309 (2022)
Truck Traffic25%
Lanes On Bridge4

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number05203A006 18159

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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